Nepean Bay Weather Forecast

    • 5
    • 17

    Partly cloudy

    • 6
    • 19

    Mostly sunny

    • 7
    • 19

    Partly cloudy

    • 8
    • 18

    Partly cloudy

    • 5
    • 18

    Mostly sunny

    • 6
    • 19

    Mostly sunny

    • 10
    • 20

    Shower or two

Today 26 Aug Kangaroo Island

Cloudy. Light winds. Daytime maximum temperatures around 16.

Investigator Strait Coastal Waters

Wind
Variable below 10 knots.
Seas
Below 0.5 metres.
1st Swell
West to southwesterly around 1 metre.
Weather
Partly cloudy.
Weather Situation
A high pressure ridge over central SA will move slowly eastwards during Wednesday and Thursday. A low pressure trough over WA is expected to extend over the far west of SA late Thursday and Friday. A high pressure system will move across waters to the south over the weekend to be centred over southern Victoria late Sunday.
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  • Temperature Forecast Bureau of Meteorology

  • Temperature Real-Time

Nepean Bay Temperature Statistics View More

August Temperature

Kingscote Airport (7km)

  • Lowest 1 August, 2026

    -0.1 °C

  • Average August

    11.7 °C

  • Highest 18 August, 2026

    18.2 °C

Climate (2021–2026)

Kingscote Airport (7km)

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  • Average Low 2021–2026

    9.3 °C

  • Average 2021–2026

    14.8 °C

  • Average High 2021–2026

    21.1 °C
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